What is CVE-2025-36001?

CVE-2025-36001 is a medium-severity vulnerability in IBM Db2, classified under Uncontrolled Recursion. CVSS score: 6.5/10. Published 2026-01-30.

How severe is CVE-2025-36001?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in IBM Db2

CVE-2025-36001

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 and 12.1.0 - 12.1.3 could allow an authenticated user to cause a denial of service using a specially crafted SQL statement including XML that performs uncontrolled recursion.

EPSS: 0.003 (27.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Ibm Db2
Ibm Db2 For Linux, Unix And Windows — versions 11.5.0, 12.1.0

Weakness classification (CWE)

CWE-674 — Uncontrolled Recursion

References

psirt@us.ibm.com (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-36001?: CVE-2025-36001 is a medium-severity vulnerability in IBM Db2, classified under Uncontrolled Recursion. CVSS score: 6.5/10. Published 2026-01-30.
How severe is CVE-2025-36001?: Medium severity. CVSS v3 base score is 6.5 out of 10.